What are the reasons for Volkswagen car air conditioning not cooling?
2 Answers
Reasons for Volkswagen car air conditioning not cooling: 1. Insufficient or too little refrigerant: A common reason for car air conditioning not cooling is insufficient or too little refrigerant, which is likely caused by minor leaks. 2. Excessive refrigerant: Too much refrigerant can also cause the air conditioning not to cool. There is a required proportion of refrigerant in the air conditioning system. If the proportion is too high, it can affect heat dissipation. Similarly, adding too much cooling oil during maintenance can also reduce the heat dissipation of the cooling system. 3. Loose drive belt of the car air conditioning compressor: Car cooling relies on refrigerant, and refrigerant transmission depends on the air conditioning compressor. The drive belt is an important moving part that drives the compressor. If the drive belt is loose, the compressor may slip during operation, reducing transmission efficiency, lowering the compressor speed, and decreasing the delivery of compressed refrigerant, leading to the air conditioning not cooling. 4. Substandard refrigerant and freezing oil: Excessive impurities in the refrigerant and freezing oil can also clog the car air conditioning filter, causing the air conditioning not to cool. Increased resistance reduces the flow of refrigerant to the expansion valve, resulting in insufficient cooling capacity. 5. Moisture infiltration in the cooling system: If moisture enters the car air conditioning cooling system, it can cause insufficient cooling or no cooling at all.
My Volkswagen's air conditioning stopped cooling a few days ago, making me sweat profusely while driving. After inspection, it was found that the refrigerant was insufficient, possibly due to a slight leak in the pipeline or the aging and failure of the air conditioning compressor, which tends to wear out over time. It could also be that the air filter is completely clogged with dust, affecting airflow. Additionally, electrical system issues, such as a faulty fan controller, can also lead to cooling failure. I recommend going to a 4S shop or repair shop for a full inspection first. They can detect leaks and refill the refrigerant—don't try to fix it yourself to avoid damaging the electrical system. Remember to replace the filter and clean the condenser once a year during regular maintenance to prevent future issues. Delaying this problem could also lead to burnt-out parts, increasing repair costs.
